/**
* This gets called whenever one of the ConfigElements we are editing removes a property value.
*/
public void propertyValueRemoved(ConfigElementEvent evt) {
ConfigElement src = (ConfigElement) evt.getSource();
int idx = evt.getIndex();
PropertyDefinition prop_def = src.getDefinition().getPropertyDefinition(evt.getProperty());
DefaultMutableTreeNode elt_node = getNodeFor(src);
// Get the node containing the property description under the source
// ConfigElement node
for (Enumeration e = elt_node.children(); e.hasMoreElements(); ) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) e.nextElement();
if (node.getUserObject().equals(prop_def)) {
// The newly removed property value must be a child to this node
System.out.println("Removing child " + idx + " from node: " + node.getUserObject());
DefaultMutableTreeNode child = (DefaultMutableTreeNode) node.getChildAt(idx);
// If the child is an embedded element, stop listening to it
if (child.getUserObject() instanceof ConfigElement) {
ConfigElement removed_elt = (ConfigElement) child.getUserObject();
removed_elt.removeConfigElementListener(this);
}
// Physically remove the child from the tree
removeNodeFromParent(child);
}
}
}
/** Clears the data in the model. */
private void clear() {
// Stop listening to all config elements in the tree
List nodes = getNodesOfClass(ConfigElement.class);
for (Iterator itr = nodes.iterator(); itr.hasNext(); ) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) itr.next();
ConfigElement elt = (ConfigElement) node.getUserObject();
elt.removeConfigElementListener(mElementListener);
}
// Clear out all the old nodes from the tree.
((DefaultMutableTreeNode) getRoot()).removeAllChildren();
}